Introduction to Functions and Relations

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Tags

CCSS.8.F.A.1

Is this table a function or not a function? 

• Function

• Not a Function

Tags

CCSS.8.F.A.1

• Function
• Not a Function

Is this graph a function or not a function? (Use the vertical line test)

• Function

• Not a Function

The left grouping in a mapping is the...

• domain.

• range.

• y-axis.

• relation.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the domain of the mapping?

• {2, 3, 8}

• { (-4, 3), (1, 8), (3, 2), (7, 3) }

• {-4, 1, 3, 7}

• {-4, 1, 2, 3, 7, 8}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

Which set of ordered pairs is a function?

• <(9,5), (10,5), (9,-5), (10,-5)>

• <(3,4), (4,-3), (7,4), (3, 8)>

• <(6,-5), (7, -3), (8, -1), (9, 1)>

• <(2, -2), (5, 9), (5, -7), (1, 4)>

Tags

CCSS.8.F.A.1

This relation is called

• One-to-one Relation

• Many-to-one Relation

• One-to-many Relation

• Many-to-many Relation

Tags

CCSS.8.F.A.1

All of the y values or outputs are called what?

• Domain

• Range

• Relation

• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1